210000220121112 has 64 divisors (see below), whose sum is σ = 543141174124800. Its totient is φ = 67581653811840.

The previous prime is 210000220121099. The next prime is 210000220121129. The reversal of 210000220121112 is 211121022000012.

It is a junction number, because it is equal to n+sod(n) for n = 210000220121091 and 210000220121100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133564 + ... + 20494347.

It is an arithmetic number, because the mean of its divisors is an integer number (8486580845700).

Almost surely, 2^{210000220121112} is an apocalyptic number.

It is an amenable number.

210000220121112 is an abundant number, since it is smaller than the sum of its proper divisors (333140954003688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210000220121112 is a wasteful number, since it uses less digits than its factorization.

210000220121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20642576 (or 20642572 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210000220121112 its reverse (211121022000012), we get a palindrome (421121242121124).

The spelling of 210000220121112 in words is "two hundred ten trillion, two hundred twenty million, one hundred twenty-one thousand, one hundred twelve".